Ventilator.



H. MAUGRAS.

VENTILATOR.

APPLIGATION' FILED AUG.25, 1913.

hl w, Patented Mar. 3d, 1915.

f @gw @Wwmw/w ATTORN EY.

HIPPOLYTE MAUGRAS, OF MARSEILLE, FRANCE.

VENTILATOR.

Specification of Letters Patent.

Patented Mar., 3th, tutti.

Application led August 25, 1913. Serial No. 786,432.

T0 all whom t may concern Be it known that l, HIPPOLYTE MAUGRAs, citizenof France, residing at Marseille, have invented new and usefulImprovements in Ventilators, of which the following is a specification.

The object of the invention consists in a fan or turbine, the blades ofwhich are inclosed in a casing which has an opening on one side forexhaustion, and, on the other side, is provided with a helicoidalpartition which takes up the air and conducts it into a carbureter forthe production of carbureted gas.

@n the annexed drawings: Figure 1 represents an application of theinvention to a gas heater. Fig. 2 is a view of the interior i'ace infront of the casing, carrying a helicoidal partition, finally Fig. 3represents the other half of the casing seen from the interior of thefan.

Referring to the drawing the device A comprises an electric fan of theusual type consisting of an electric motor B and fan blades C. Thedevice comprises further a casing consisting of two parts E and F, thepart E being removable. The part F which incloses the blades C isprovided with air inlet holes G. rlhe part E, which is positioned infront of the blades C is provided with an air outlet and with ahelicoidal partition forming a passage for conducting the air from theinterior of the casing to the outlet. rlhe air is led from the outlet bya pipe K to the carbureter H. When the part E of the casing is removedthe fan may be used for ventilation purposes in the usual manner.

rlhe arrangement shown in the annexed drawings illustrates oneapplication only of the invention which can be used in a variety oicways without any change in the general idea.

l claim:

l. In a device of the class described, in combination, a casingconsisting of two parts, fan blades rotatably mounted in one of saidparts, said part being provided with an air inlet, the other of saidparts being provided with an air outlet and with a parn tition forming apassage communicating with said outlet, said second mentioned part beingremovable from said first mentioned part.

2. In a device of the class described, in combination, an electric fanconsisting of a motor and fan blades, and a two part casing, one of saidparts inclosing said blades and being provided with an air inlet, theother of said parts being provided with an air outlet and with apartition forming a passage communicating with said outlet, said secondmentioned part being removable from said first mentioned part wherebysaid fan may be used for the ventilation of apartments in the usualmanner.

In testimony whereof l have signed my name to this specification in thepresence oi two subscribing witnesses.

HIPPOLYTE MAUGRAS.

YWitnesses:

E. DIMETTON, PAUL H. CRAM.

t'opies ot this patent may be" obtained for ve cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

Gil

